Hard to believe, but articles are popping up at business websites claiming that venerable Hewlett-Packard may fail. In their most recent fiasco, HP wrote off a loss of $8.8 of their $11.1 US billion acquisition of Autonomy and have alleged fraud in the deal. Revenue is down 7% from a year ago and the stock has hit a 10-year low. The company is laying off 27K employees but that may not be enough. Some speculate HP might be broken up into parts with buy-outs involved. This article from last May offers a good in-depth analysis of how all these problems came to pass.

This is like a trend, every company that bases their busines model exclusively or almost exclusively on complementing Microsoft products is going down, like HP, AMD, Nokia, Dell and to some extent Intel.
Others have seen the danger beforehand and attempted to diversify, like NVidia with Tegra.

Versus, what, computer manufacturers that didn't ally themselves with Microsoft? They are all long DEAD (Apple also allied themselves, if more loosely; but Macs are basically standard Wintel PCs hardware-wise, very much coming from MS-curated ecosystem)

Nokia was in hot water before MS. Intel is flourishing.
OTOH... are you implying that PowerPC is doing well? Zilog? MOS & Commodore? Most of CPU or GFX manufacturers - also gone, MS or not; killed by competition from Intel, AMD, Nvidia, ATI.

And BTW HP tried to build a major part of their business on mobile Linux OS ...tried and failed; it possibly hastened their "demise"(?).